/*
Copyright 2023 The Dapr Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package internal

import (
	"context"
	"io"
	"time"
)

// PlacementService allows for interacting with the actor placement service.
type PlacementService interface {
	io.Closer

	Start(context.Context) error
	WaitUntilReady(ctx context.Context) error
	LookupActor(ctx context.Context, req LookupActorRequest) (LookupActorResponse, error)
	AddHostedActorType(actorType string, idleTimeout time.Duration) error
	SetOnAPILevelUpdate(fn func(apiLevel uint32))
}

// LookupActorRequest is the request for LookupActor.
type LookupActorRequest struct {
	ActorType string
	ActorID   string
}

// ActorKey returns the key for the actor, which is "type/id".
func (lar LookupActorRequest) ActorKey() string {
	return lar.ActorType + "/" + lar.ActorID
}

// LookupActorResponse is the response from LookupActor.
type LookupActorResponse struct {
	Address string
	AppID   string
}
